In addition to writing many articles regarding coaching, assessment,
and reflective thinking he also does training in poverty, leadership, orga-
nizational development, conflict management, brain research, and class-
room management. Since 1970, Sommers has been in K–12 education as
a teacher and principal in urban, suburban, and rural schools. He has
served as an adjunct faculty member at Hamline University, the Univer-
sity of St. Thomas, St. Mary’s University, the Union Institute, and Capella
University.
Bonnie Taborhas been involved with Waikiki School since 1987, ini-
tially as a counselor and presently as the principal. She received her bach-
elor’s degree from Case Western Reserve University, her master’s degree
in counseling from the University of Hawaii, and her master’s in special
education from the University of California. Throughout her professional
career, she has found the Habits of Mind to be inspirational and funda-
mental to her vision of the purpose of education. As principal of Waikiki
School, recently recognized as a State Blue Ribbon winner, she believes
the Habits of Mind provide the vision, the direction, and the unity of pur-
pose that have resulted in the school’s status as a school of excellence.
Diane P. Zimmermanis superintendent of the Old Adobe Schools in
Pet aluma, California. She has worked as a teacher and an administrator
in special education, as an elementary principal, and as assistant superin-
tendent for human resources. Her work with job-embedded staff develop-
ment has been featured in the joint ASCD-NSDC publication A New
Vision for Staff Development. She has collaborated for more than 25 years
with members of the cognitive coaching community and was identified
as an early practitioner; she is featured in the ASCD video series Another
Set of Eyes: Conferencing Skills. Zimmerman completed her PhD in orga-
nizational systems at the Fielding Institute in Santa Barbara, California.
In her spare time, she continues to collaborate with colleagues and to
write both articles and coauthored books.
424 Learning and Leading with Habits of Mind